Water-tube steam-generator.



` No. 629,882. Patented Aug. i, |899.

F. wmnHAM. WATER TUBE STEAM GENERATOR.-

(Application med Feb, 23, 1898.)

(No Model.)

ISi

rRANois WINDHAM, on LONDON, ENGLAND.

WATER-TUBE STEAM-GENERATOR.

SPECIFICATION formingpart of Letters Patent No.` 629,882, dated August 1, 1899.

' Appnmion ined mmm 23,1898. serai No. 671,316. tnt man.;

mately at right angles from its upper and Be it known that I, FRANCIS WINDHAM, a subject of the Queen of England, residing at London, England, have invented a certain new and useful Improved Taterflube Steam- Y Generator, (forwhich I have made application for Letters Patent in Great Britain, No. 29,972, dated December 1S, 1897,) of which the following is a specication.

This invention relates to van improved water-tube steam-generator, its object being to construct a neat and efficient form'of generator the parts of which may readily be renewed,

the generator beingalso provided with an automatic water-regulating device, an oil-vaporizer, and vaporfburner.

In the accompanying drawings, Figure Lis an end elevation, partly in section of the com? 4tom members or mud-drums D are provided,

each consisting of a curved portion D- and a fiat side conveniently formed by a plat'e'Dz. The water-tubes E are all straight and of equal length, their ends being connecteth'respeotively, to the flattened parts A of the steam-drum Aand to the flat platesl),2 of the bottom members D. XVith this arrangement it is only necessary to have tubes of a Astandard length at hand in order to replaceany of them which may be damaged.k A float-y plate F of approximately the same length as the steam-drum A is attached at one edge to a rod G and arranged within the steanrdrum so that the rod G lies longitudinally along one side of the drum, with one end carried in a stirru p H, so as to turn freely, while the other end projects through a stuffing-box C' in one of the covers or end plates of the steamd-ruin. Along the edge of the plate F opposite to that at which it is attached to the rod G is arranged a float J, the plate being also provided with Vanes or baflies F', projecting approxilower faces. The end of the rod G which projects through the stuing-box C carries a lever which is connected through a rod Gwith ya valve or cock controlling the feed-water su pply. steanr drum so that it is maintained in an ap- Aproztimately'horizontal position by thefl'oat J as long as the water-level is at its normal height, the plate in this position lying close to the surfaceof the water. When the water-level falls, the plate also falls, causing the rod G to turn, this movement opening the 'feed-supply cock and admitting the water necessary to bring the latter up to its proper level, when the su pply is automatically turned oft' by the plate F being raised to itsnormal position.

' To the under side of thesteam=drum A are rriveted orotherwise secured bosses or lugs K, into which are screwedor otherwise attached rods L'. The latter are attached at their lower which may consist of a metal plate traversed by aseri'es of longitudinal holes M', which are connected to each other by cross-passages M2, so as to form a zigzag passage throughout the whole plate. This plate may conveniently be formed by casting it with the ylongituilinal passages and afterward boring transversel passages near the ends of `the plate. The ends screw-plugs, as atMS, the transverse passages being also pluggedbetween the alternate longitudinal passages, as at M4. Liquid fuel is led into the vaporizer M by a pipe N, the rethe burner P, the latter comprising a nozzle which projects into one, two, or more concent-rically-arranged cones Q., The vapor issuing from the nozzle Pdraws in the air necessary for its complete combustion through the spaces between the cones Q and being ignited at the point R bu rns with a powerful heating-flame.l From the situation of the several parts this flame strikes against the vaporizer M, which acts as a battle anddedeets it laterallyagainst the water-tubes E. f

It'. desired where other means are employed `for heating the boiler the perforated plate M may serve as a feed-water heater. If desired, the movement of the hinged plate F, in addiends to a combined lvaporizer and baffle liL of the longitudinal holes are nowstopped witlflsulting vapor being conducted by a pipe O to The'plate Fis arranged within the tion to controlling the feed-water supply, may at the same time serve to regulate the supply of fuel to the vaporizer.

The hinged plate F within the steam-drum by reason of its position is very effective in preventing priming, while the bafiies F prevent the excessive movement of the water Within the generator when the latter is subjected to moVement-as,f0r example,on board ship.

I claiml. In a tubular steam-boiler, the combination with a steam-generator, two series of Water-tubes communicating with the generator and inclined downwardly and outwardly therefrom in opposite directions, mud-dru ms with which the lower ends of the tubes comn1unicate,a Vaporizer located beneath the generator and intermediate the two series of water-tubes, and a vapor-burner beneath and connected to the vaporizer, substantially as described.

2. In a tubular steam-boiler, the combination with a steam-generator, two series of Water-tubes comm unicating,` with the generator and inclined downwardly and outwardly therefrom in opposite directions, mud-drums with which the lower ends ofthe tubes communicate, a combined vaporizer and baffle located beneath the generator and intermediate the two series' of Water-tubes, and a vapor-burner beneath and connected to the vaporizer, substantially as described.

3. In a tubular steam-boiler, the combination with a generating-chamber, of a pivoted float-plate Within the chamber and baffleplates carried upon the iioat-plates, substantially as described.

In testimony whereof I have hereto set my hand in the presence of the two subscribing witnesses.

FRANCIS lVINDHAM.

lVitnesses:

W. M. HARRIS, A. P. HoAG. 

